This paper presents an analysis of the failure and completion rates of graduate students in economics at three universities in The Netherlands. We find that an indicator of the research productivity of the supervisor is an important determinant of the completion and dropout rates. However, this...

This paper analyzes the determinants of lay-offs, job-to-job movements and total separations with a unique data set that combines information on individual firms and their workers. We are in particular interested in whether the lay-off policy of firms can explain the relatively high level of...

This discussion paper resulted in a publication in <I>Econometrica</I> (1998). Volume 66, issue 5, pages 1183-1221.<P> This paper analyzes the determinants of lay-offs, job-to-job movements and totalseparations with a unique data set that combines information on individual firmsand their workers. We are...</p></i>

We reconsider the efficiency bound for the semi-parametric Mixed Proportional Hazard (MPH) model with parametric baseline hazard and regression function. This bound was first derived by Hahn (1994). One of his results is that if the baseline hazard is Weibull, the efficiency bound is singular,...

This paper develops a new nonparametric series estimator for the average treatment effect for the case with unconfounded treatment assignment, that is, where selection for treatment is on observables. The new estimator is efficient. In addition we develop an optimal procedure for choosing the...

We specify and estimate an equilibrium job search model with productivity differences across labor market segments The model allows for two types of unemployment: frictional unemployment due to search frictions and structural unemployment due to wage floors Wage floors exist because of high...

In Belgium welfare agencies receive a subsidy to employ welfare recipients for a period sufficiently long to entitle them to benefits of the contributory social insurance program This work experience program without any training content is called Social Employment (SE) This paper investigates...

We analyze the impact of unemployment benefits and minimum wages using an equilibrium search model which allows for dispersion of benefits and productivity levels job-to-job transitions and structural and frictional unemployment The estimation method uses readily available aggregate data on...

In Belgium welfare agencies receive a subsidy to employ welfare recipients for a period sufficiently long to entitle them to unemployment benefits This work experience program is called Social Employment (SE) We investigate the effect of SE on the exit rate from welfare We propose a grouping/IV...

This article reviews the results of an impact evaluation of small-scale rural infrastructure projects in health, water, and education financed by the Bolivian Social Investment Fund. The impact evaluation used panel data on project beneficiaries and control or comparison groups and applied...